Sennheiser B5000-2 Battery Pack with Command Channel Button

Battery pack for all SKM5200 and SKM5000 variants, requires (2) AA batteries, operates SKM5200 transmitters for 7.5 hours (Hi power) - 13 hours (Lo power). Command Function When you have a the handheld microphone battery sled that has the "Command" button and you have an 3732-II Command (receiver) you can use the "Command" function. The "Command" function allows the microphone user to communicate with the sound engineer on a separate channel that is not output to the sound system and hence not heard by the audience.